266225015 has 32 divisors (see below), whose sum is σ = 388312704. Its totient is φ = 171048960.

The previous prime is 266225009. The next prime is 266225119. The reversal of 266225015 is 510522662.

It is not a de Polignac number, because 266225015 - 2⁴ = 266224999 is a prime.

It is a super-2 number, since 2×266225015² = 141751517223500450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152045 + ... + 153785.

It is an arithmetic number, because the mean of its divisors is an integer number (12134772).

Almost surely, 2^266225015 is an apocalyptic number.

266225015 is a deficient number, since it is larger than the sum of its proper divisors (122087689).

266225015 is a wasteful number, since it uses less digits than its factorization.

266225015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 266225015 is about 16316.4032494910. The cubic root of 266225015 is about 643.3040517216.

Adding to 266225015 its reverse (510522662), we get a palindrome (776747677).

The spelling of 266225015 in words is "two hundred sixty-six million, two hundred twenty-five thousand, fifteen".